Applying Monitoring Electrodes

Electrode Placement

Figure 4-1 shows typical electrode placement for the limb leads of a 3- or 5- lead patient cable. The V/C lead of the 5-lead cable can be placed in any of the precordial lead positions (V1/C1 through V6/C6) shown in Figure 4-2.

Figure 4-1 Limb Lead Electrode Placement

RA/RLA/L

RL/N* LL/F

AHA Labels

IEC Labels

 

 

RA Right Arm

R Right

 

 

LA Left Arm

L Left

 

 

RL Right Leg*

N Negative*

 

 

LL Left Leg

F Foot

 

 

* Not used for 3-lead.

Table 4-1 3-Lead ECG Lead Formation

 

 

 

 

 

 

 

 

 

 

Lead

+

-

Reference

 

 

 

 

 

 

 

 

I

LA

RA

LL

 

 

 

 

 

 

 

 

II

LL

RA

LA

 

4

 

 

 

 

 

III

LL

LA

RA

 

 

 

 

 

 

 

 

 

 

 

 

 

M3500B HeartStart XLT Defibrillator/Monitor

4-3

Page 55
Image 55
Philips M3500B manual Electrode Placement, Lead Reference